National Item Identification Number

01-121-8473
011218473
5305-01-121-8473
5305011218473

National Stock Number

Item Name

SCREW,MACHINE

Federal Supply Class

5305

Referenced on: http://automotiveenginemechanics.tpub.com//TM-9-2805-258-24P/css/TM-9-2805-258-24P_100.htm
Referenced on: http://automotiveenginemechanics.tpub.com//TM-9-2805-258-24P/css/TM-9-2805-258-24P_86.htm
Referenced on: http://automotiveenginemechanics.tpub.com//TM-9-2805-258-24P/css/TM-9-2805-258-24P_88.htm
Referenced on: http://gasturbinegenerators.tpub.com//TM-5-6115-612-24P/css/TM-5-6115-612-24P_346.htm
Referenced on: http://gasturbinegenerators.tpub.com//TM-5-6115-612-24P/css/TM-5-6115-612-24P_389.htm

Description

An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.

Commercial and Government Entity Code (Supplier Data)

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NSN (National Stock Number) 5305-01-121-8473, 5305011218473 NIIN (National Identification Number) 01-121-8473, 011218473

Part Numbers (Reference Numbers)

FF-S-92
MS51849-97
MS51849A-97

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNC
0.250 INCHES
20
2A
RIGHT-HAND
0.750 INCHES MINIMUM AND
0.880 INCHES MA